Hitachi AQUA FREE RWM-4FSN1E Conditioner Manuals

Manuals and User Guides for Hitachi AQUA FREE RWM-4FSN1E Conditioner. We have 2 Hitachi AQUA FREE RWM-4FSN1E Conditioner manuals available for free PDF download: Service Manual, Operation Manual

Hitachi AQUA FREE RWM-4FSN1E Service Manual (192 pages)

Brand: Hitachi | Category: Heat Pump | Size: 13 MB

Table of Contents
9
Units Installation
9
Transportation of Outdoor Units
11
RWM Units
12
Factory Supplied Accessories
12
Initial Check
12
Installation
13
Installation Space
14
Installation Place Provision
15
Remove Shipping Washer
16
Piping Installation
18
Piping Work Connection Considerations
19
Piping Materials
19
Three Principles on Refrigerant Piping Work
20
Suspension of Refrigerant Piping
21
Tightening Torque
22
Brazing Work
23
RWM Unit
24
H(V)RNE Unit
24
Refrigerant Piping Position
24
Piping Connection
25
Flushing Refrigerant Pipes
25
Air Tight Pessure Test
26
Vacuum Drying
27
Refrigerant Charge Procedure
29
Drain Discharging Boss
30
Water Piping Consideration
31
Piping Materials
31
Suspension of Water Piping
31
Charging Water
32
Pump Curves
33
Adjusting the Water Flow
33
Electrical Wiring and Working Mode
36
General Check
36
Electrical Wiring for the Outdoor Unit
36
Electrical Wiring Connection for Outdoor Unit
36
Setting the DIP Switches for the Outdoor Unit
37
Electrical Wiring for AQUA FREE Module
39
Main PCB
39
Control PCB
40
Heating Mode
41
Common Wiring
42
Indoor Units
42
Outdoor Units
42
Control System
55
Device Control System
56
Heating Operation
56
Defrost Operation
56
Indoor Unit
57
Outdoor Unit
57
Indoor Unit PCB
58
Main PCB
58
Control PCB
59
Outdoor Unit PCB
60
Led Indication
60
Protection and Safety Control
61
Safety and Control Device Setting
61
Safety and Control Device Setting for the Indoor Units
61
Safety and Control Device Setting for the Outdoor Units
61
Standard Operation Sequence
62
Cooling Operation
62
Heating Operation
63
Electrical Heater Operation
65
Commisioning
72
Preliminary Check
72
Electrical Check
72
Hidraulic Circuit Checks
72
Refrigerant Circuit Checks
73
Commissioning Procedure
73
Check List
73
Operation of the Auxiliary Electric Heater
74
Summer Operation
74
Troubleshooting
76
Initial Troubleshooting
76
Failure of the Power Supply to the Indoor Unit and the Remote Control Switch
76
Abnormal Transmission Bteween the Remote Control Switch and the Indoor Unit
77
Abnormal Operation of the Devices
78
Troubleshooting Procedure
86
Alarm Code Table
86
Truobleshooting by Alarm Code
87
Control Information
128
Additional Information
142
Check Method
143
Spare Parts
145
Indoor Units
146
Rwm-(3~5)Fsn1E
146
Rwm-(3~5)Fsn1E-(4.5/6)H(1/3)
147
Rwm-(3~5)Fsn1E-S1
148
Rwm-(3~5)Fsn1E-S1-(4.5/6)H(1/3)
149
Outdoor Units
150
Ras-3Hvrne
150
Ras-(4/5)Hvrne
152
Ras-(4/5)Hrne
154
Servicing
158
Indoor Units
158
Front Cover Removing
158
Expansion Vasel Removing
158
Water Pump Removing
159
Pressure Switch Removing
159
Float Switch Sensor Removing
159
Thermistors Removing
160
Water Safety Valve Removing
160
Port Water Supply Removing
161
Removing the Electronic Expansion Valve Coi
161
Air Purger Removing
162
Electric Heater Removing
162
Electrical Parts Removing
162
Outdoor Units
163
Removing Service Cover
163
Removing Air Outlet Grille
163
Removing Outdoor Fan
163
Removing Outdoor Fan Motor
164
Removing the Compressor
164
Removing High Pressure Switch and Pressure Switch for Control
167
Removing Coil for Reversing Valve
168
Removing Coil for Expansion Valve
169
Removing PCB1
169
Removing ISPM
170
Removing Electrical Components
172
Main Parts
176
Inverter
176
Specification of Inverter (Single Phase)
176
Specifications of Inverter (Three Phases)
177
Inverter Time Chart
179
Protective Function
180
Power Supply
180
Thermistor
181
Resistance Value of the Thermistor
182
Electronic Expansion Valve
184
Electronic Expansion Valve for the Outdoor Unit
184
Electronic Expansion Valve for the Indoor Unit
185
Pressure Sensor
186
Maintenance Work
188
Service and Maintenance Record
190

Hitachi AQUA FREE RWM-4FSN1E Operation Manual (23 pages)

Brand: Hitachi | Category: Air Conditioner | Size: 1 MB

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